#include<stdio.h>
#include<string.h>

struct Books
{
    char title[50];
    char author[50];
    char subject[100];
    int book_id;
};

/* 函数声明*/
void printBook( struct Books * book);
int main()
{
    struct Books Book1; /* 声明Book1, 类型为Books*/
    struct Books Book2; /* 声明Book2, 类型为Books*/

    /* Book1 详述*/
    strcpy( Book1.title, "C Programming");
    strcpy( Book1.author, "Nuha Ali");
    strcpy( Book1.subject, "C Programming Tutorial");
    Book1.book_id = 6495407;

    /* Book2 详述*/
    strcpy( Book2.title, "Telecom Billing");
    strcpy( Book2.author, "Zara Ali");
    strcpy( Book2.subject, "Telecom Billing Tutorial");
    Book2.book_id = 6495700;

    /* 通过传Book1 的地址来输出 Book1 信息*/
    printBook( &Book1);

    /* 通过传Book2 的地址来输出 Book2 信息*/
    printBook( &Book2);

    return 0;
}

void printBook( struct Books *book)
{
    printf( "Book title: %s\n", book->title);
    printf( "Book author : %s\n", book->author);
    printf( "Book subject : %s\n", book->subject);
    printf( "Book book_id: %d\n", book->book_id);
}